Guggenheim, JA;
Zhang, EZ;
Beard, PC;
(2017)
Photoacoustic imaging with planoconcave optical microresonator sensors: feasibility studies based on phantom imaging.
In: Oraevsky, AA and Wang, LV, (eds.)
Photons Plus Ultrasound: Imaging and Sensing 2017.
(pp. 100641V1-100641V5).
Society of Photo-Optical Instrumentation Engineers (SPIE)
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Abstract
The planar Fabry-Pérot (FP) sensor provides high quality photoacoustic (PA) images but beam walk-off limits sensitivity and thus penetration depth to ≈1 cm. Planoconcave microresonator sensors eliminate beam walk-off enabling sensitivity to be increased by an order-of-magnitude whilst retaining the highly favourable frequency response and directional characteristics of the FP sensor. The first tomographic PA images obtained in a tissue-realistic phantom using the new sensors are described. These show that the microresonator sensors provide near identical image quality as the planar FP sensor but with significantly greater penetration depth (e.g. 2-3cm) due to their higher sensitivity. This offers the prospect of whole body small animal imaging and clinical imaging to depths previously unattainable using the FP planar sensor.
| Type: | Proceedings paper |
|---|---|
| Title: | Photoacoustic imaging with planoconcave optical microresonator sensors: feasibility studies based on phantom imaging |
| Event: | SPIE Photonics West 2017 |
| Location: | San Francisco, California, United States |
| Dates: | 28 January 2017 - 02 February 2017 |
| ISBN-13: | 9781510605701 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2249993 |
| Publisher version: | http://doi.org/10.1117/12.2249993 |
| Language: | English |
| Additional information: | © 2017 SPIE. This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Life Sciences & Biomedicine, Optics, Radiology, Nuclear Medicine & Medical Imaging, ULTRASOUND DETECTION, TOMOGRAPHY, MICROSCOPY |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1571461 |
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